The incubation period of influenza is usually two days but can range from one to four days. What are the symptoms of influenza? Typical influenza disease is characterized by abrupt onset of fever, aching muscles, sore throat, and non-productive cough. Additional symptoms may include runny nose, headache, a burning sensation in the chest, and eye pain and sensitivity to light. Typical influenza disease does not occur in every infected person.
ACTION: If sleeping on your left side doesnât help, and heartburn and indigestion are still proving a problem, prop up the head of your bed slightly, so that the upper body is higher than the stomach. This can help reduce acid reflux when sleeping, as gravity keeps the acid in the stomach.
Underlying health conditions. Indigestion can be caused by a number of health conditions. You may have a peptic ulcer, which is a break in the lining of your stomach or small bowel. You can get a peptic ulcer if stomach acid, which helps digest your food, damages your stomach lining.